2.8-inch Electronic Cat's Eye with the Doorbell, Night Vision, Anti-theft Alarm, Support Built-in Memory Can Store 100 Photo Taking Pictures Easy to install, replace the battery without dismantling the host and cat's eye, remove the battery cover can be directly host plane. Two conventional AA batteries, small power, standby time is longer, the display has the battery power display function, battery remaining 1 lattice to remind users to replace the new battery. 32 ringtone, users can choose any (a key separate selections for selection). The camera uses a professional digital camera chip, image clearer, increasing luminous compensation circuit, night vision effect is better than the conventional bell, at a large angle, the visual angle of 120 degrees. 15S automatic machine, users need not worry about forgetting shutdown caused by battery soon run out.